US5279321A - Rupture disc - Google Patents

Rupture disc Download PDF

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Publication number
US5279321A
US5279321A US07/985,803 US98580392A US5279321A US 5279321 A US5279321 A US 5279321A US 98580392 A US98580392 A US 98580392A US 5279321 A US5279321 A US 5279321A
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US
United States
Prior art keywords
disc
wires
rupture
thermoplastic material
metal wires
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
US07/985,803
Inventor
Alexander Krimm
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Hoechst AG
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Hoechst AG
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Publication date
Application filed by Hoechst AG filed Critical Hoechst AG
Assigned to HOECHST AKTIENGESELLSCHAFT reassignment HOECHST AKTIENGESELLSCHAFT ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: KRIMM, ALEXANDER
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Publication of US5279321A publication Critical patent/US5279321A/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
    • F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
    • F16K17/14—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side with fracturing member
    • F16K17/16—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side with fracturing member with fracturing diaphragm ; Rupture discs
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
    • F16K37/0025—Electrical or magnetic means
    • F16K37/0041—Electrical or magnetic means for measuring valve parameters
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S137/00—Fluid handling
    • Y10S137/91—Destructible or deformable element constructed of specific material
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/1624—Destructible or deformable element controlled
    • Y10T137/1632—Destructible element
    • Y10T137/1692—Rupture disc
    • Y10T137/1714—Direct pressure causes disc to burst

Definitions

  • the invention relates to rupture discs, especially those for the protection of scientific and industrial hollow bodied apparatus, such as vessels, pipelines, and the like, against suddenly occurring, intolerable overpressure or underpressure. It is composed of a thermoplastic material, in which metal wires or carbon fibers are embedded for stabilization. The metal wires can, at the same time, signal the rupture of the membrane.
  • Rupture discs have long proven their worth in industrial and scientific operations as safety devices. In comparison with safety valves, they have the advantage of responding virtually without inertia to pressure changes and being capable of opening large cross sections without delay.
  • rupture discs do not always adequately withstand pulsating pressure loads. Such periodic pressure fluctuations occur, for example, if vessels are fed by piston engines. The rupture discs tend to vibrate, causing the disc material to display the effects of fatigue; in addition, the rupture values change after a period of greater or lesser duration.
  • a rupture disc which, although flexible, is nevertheless stable, does not change its rupture value, and has a long service life.
  • the object described above is achieved by a rupture disc of a thermoplastic material, wherein metal wires or carbon fibers, running parallel to the disc surface, are set.
  • the configuration of the rupture disc ensures that its strength is materially increased in comparison with a disc of plastic without integrated wires or fibers; moreover, vibrations such as those triggered by pressure fluctuations cannot lead to an impairment of its service life. It combines the advantages of metal and plastic.
  • the rupture disc according to the invention makes it possible not only to design large-dimensioned relieving surfaces, but also to match the disc to the most varied of surface area shapes by selection of suitable materials.
  • thermoplastic materials usual for this field of application can be used as materials for the rupture disc according to the invention. It is, therefore, possible to adapt the rupture discs individually to the specific intended uses, e.g. the pressure and temperature conditions, the atmosphere acting on one or both sides, etc.
  • discs which are, for example, resistant to corrosive media or elevated temperatures are obtained.
  • resistant disc material it is also possible for materials which are in fact unsuitable--or only conditionally suitable--to be provided with single-ply or multi-ply protective layers.
  • the protective layer may be designed as a heat-insulating layer.
  • thermoplastic materials which are suitable for producing the novel rupture discs are polyethylenes, polypropylenes, polyamides, polyvinyls, polyacetates, polyesters, polytetrafluoroethylenes, and silicone rubbers. Polyethylenes, polyamides, and polytetrafluoroethylenes have proven particularly successful.
  • the thickness of the rupture disc depends on the specific application and is also governed by the material selected. Accordingly, it may be designed as a sheet or as a disc, there being no distinct differentiation between the two configurations.
  • the high stability of the rupture disc according to the invention is based on the integration of metal wires, carbon fibers, or the like in the plastic. Usually, they are arranged at certain intervals parallel to one another and to the disc surface, in such a way that they are surrounded on all sides by the thermoplastic material. Under these conditions, they produce particularly high stabilizing effects and are, moreover, protected against attack, for example by the action of corrosive substances. Allowance can be made for the respective demands on the rupture disc by the number of wires or fibers per unit area incorporated into the bursting membrane, by its thickness, and the particular material used. The most varied of elemental metals, such as iron, aluminum, copper, in special cases silver, as well as alloys, come into favorable consideration as wire materials; wires of copper and iron are particularly suitable.
  • wire grids or wire meshes may be set in the thermoplastic material instead of a plurality of individual wires.
  • carbon fibers may also be used in their various textile forms--i.e. other than as fibers and yarns--for example, as woven fabrics and felts. In this way, properties and application possibilities of the rupture disc according to the invention can be additionally varied and extended.
  • At least one of the wires which is set therein is designed as an electrical conductor through which current flows. It is in connection with a suitable device and, on bursting open of the disc, sets off a signal by interrupting the current flow. It goes without saying that rupture discs containing carbon fibers can also be equipped with a conductor through which current flows as a signal generator.
  • thermoplastic material between which the wires or fibers have been placed, can be welded over their entire surface area by heat treatment.
  • Another method starts with the thermoplastics in powder form.
  • the wires are imbedded in the powder, the powder is then pressed to form moldings, and subsequently sintered, if appropriate with the application of pressure.
  • the novel rupture disc can be used in pressure relieving devices of the conventional type, in particular those which are provided with a tear-open device. They are usually formed as a two-part frame, between portions of which the rupture disc is clamped in a suitable way, e.g. by screw bolts which are arranged at the periphery of the frame.
  • FIG. 1 shows a circular rupture disc in plan view
  • FIG. 2 is a cross section along line A-B of FIG. 1.
  • Disc 1 is made of the thermoplastic material 2, and has wires or fibers 3 embedded therein. Wires or fibers 3 provide strength and stability to material 2. Wire 4 is an electrical conductor which, when disc ruptures, triggers a signal based on interruption of the flow of current therethrough.

Abstract

A rupture disc of a thermoplastic material in which metal wires or carbon fibers are imbedded. According to a particular embodiment of the invention, at least one of the wires is designed as an electrical conductor through which current flows.

Description

This Application claims the benefit of the priority of German Application P 41 40 089.5, filed Dec. 5, 1991.
The invention relates to rupture discs, especially those for the protection of scientific and industrial hollow bodied apparatus, such as vessels, pipelines, and the like, against suddenly occurring, intolerable overpressure or underpressure. It is composed of a thermoplastic material, in which metal wires or carbon fibers are embedded for stabilization. The metal wires can, at the same time, signal the rupture of the membrane.
BACKGROUND OF THE INVENTION
Rupture discs have long proven their worth in industrial and scientific operations as safety devices. In comparison with safety valves, they have the advantage of responding virtually without inertia to pressure changes and being capable of opening large cross sections without delay.
There is a series of requirements for materials to be used to produce rupture discs. They must, in particular, have rupture values reliably reproducible, they must be easy to roll or otherwise form into sheets, and they should be corrosion resistant. Metals in the annealed, pure state and alloys are used to a great extent as such materials. Non-metals such as plastics, e.g. silicone rubber, are now increasingly being used for this purpose.
In practice it has been found that rupture discs do not always adequately withstand pulsating pressure loads. Such periodic pressure fluctuations occur, for example, if vessels are fed by piston engines. The rupture discs tend to vibrate, causing the disc material to display the effects of fatigue; in addition, the rupture values change after a period of greater or lesser duration.
Tests have been undertaken to counter the difficulties described. For instance, the relieving surfaces have been divided up, i.e. the rupture disc surfaces reduced and, to compensate for this, the number of relieving cross sections are correspondingly increased. Although this solution to the problem leads to success with regard to the mechanical stability of the rupture discs, it is technically complex and therefore not cost-effective.
SUMMARY OF THE INVENTION
Consequently, it is the object of the present invention to provide a rupture disc which, although flexible, is nevertheless stable, does not change its rupture value, and has a long service life. The object described above is achieved by a rupture disc of a thermoplastic material, wherein metal wires or carbon fibers, running parallel to the disc surface, are set.
The configuration of the rupture disc ensures that its strength is materially increased in comparison with a disc of plastic without integrated wires or fibers; moreover, vibrations such as those triggered by pressure fluctuations cannot lead to an impairment of its service life. It combines the advantages of metal and plastic.
The rupture disc according to the invention makes it possible not only to design large-dimensioned relieving surfaces, but also to match the disc to the most varied of surface area shapes by selection of suitable materials.
DETAILED DESCRIPTION OF THE INVENTION
The thermoplastic materials usual for this field of application can be used as materials for the rupture disc according to the invention. It is, therefore, possible to adapt the rupture discs individually to the specific intended uses, e.g. the pressure and temperature conditions, the atmosphere acting on one or both sides, etc. By selection of certain materials, discs which are, for example, resistant to corrosive media or elevated temperatures are obtained. Instead of using resistant disc material, it is also possible for materials which are in fact unsuitable--or only conditionally suitable--to be provided with single-ply or multi-ply protective layers. For example, in the case of elevated temperatures, the protective layer may be designed as a heat-insulating layer. Examples of thermoplastic materials which are suitable for producing the novel rupture discs are polyethylenes, polypropylenes, polyamides, polyvinyls, polyacetates, polyesters, polytetrafluoroethylenes, and silicone rubbers. Polyethylenes, polyamides, and polytetrafluoroethylenes have proven particularly successful.
The thickness of the rupture disc depends on the specific application and is also governed by the material selected. Accordingly, it may be designed as a sheet or as a disc, there being no distinct differentiation between the two configurations.
The high stability of the rupture disc according to the invention is based on the integration of metal wires, carbon fibers, or the like in the plastic. Usually, they are arranged at certain intervals parallel to one another and to the disc surface, in such a way that they are surrounded on all sides by the thermoplastic material. Under these conditions, they produce particularly high stabilizing effects and are, moreover, protected against attack, for example by the action of corrosive substances. Allowance can be made for the respective demands on the rupture disc by the number of wires or fibers per unit area incorporated into the bursting membrane, by its thickness, and the particular material used. The most varied of elemental metals, such as iron, aluminum, copper, in special cases silver, as well as alloys, come into favorable consideration as wire materials; wires of copper and iron are particularly suitable.
In special cases, wire grids or wire meshes may be set in the thermoplastic material instead of a plurality of individual wires. Correspondingly, carbon fibers may also be used in their various textile forms--i.e. other than as fibers and yarns--for example, as woven fabrics and felts. In this way, properties and application possibilities of the rupture disc according to the invention can be additionally varied and extended.
According to a particular embodiment of the rupture disc according to the invention, at least one of the wires which is set therein is designed as an electrical conductor through which current flows. It is in connection with a suitable device and, on bursting open of the disc, sets off a signal by interrupting the current flow. It goes without saying that rupture discs containing carbon fibers can also be equipped with a conductor through which current flows as a signal generator.
Production of the novel rupture discs is carried out in the conventional way. Thus, two sheets of a thermoplastic material, between which the wires or fibers have been placed, can be welded over their entire surface area by heat treatment. Another method starts with the thermoplastics in powder form. In this case, the wires are imbedded in the powder, the powder is then pressed to form moldings, and subsequently sintered, if appropriate with the application of pressure.
The novel rupture disc can be used in pressure relieving devices of the conventional type, in particular those which are provided with a tear-open device. They are usually formed as a two-part frame, between portions of which the rupture disc is clamped in a suitable way, e.g. by screw bolts which are arranged at the periphery of the frame.
In the accompanying drawings, constituting a part hereof, and in which like reference characters indicate like parts,
FIG. 1 shows a circular rupture disc in plan view; and
FIG. 2 is a cross section along line A-B of FIG. 1.
Disc 1 is made of the thermoplastic material 2, and has wires or fibers 3 embedded therein. Wires or fibers 3 provide strength and stability to material 2. Wire 4 is an electrical conductor which, when disc ruptures, triggers a signal based on interruption of the flow of current therethrough.
While only a limited number of specific embodiments of the present invention have been expressly disclosed, it is, nonetheless, to be broadly construed and not to be limited except by the character of the claims appended hereto.

Claims (10)

I claim:
1. A rupture disc of thermoplastic material, having a plurality of metal wires or carbon fibers running parallel to a surface of said disc embedded in said thermoplastic material.
2. The disc of claim 1 wherein at least one of said wires is an electric conductor through which current flows.
3. The disc of claim 1 wherein said thermoplastic material is selected from the group consisting of polyethylenes, polypropylenes, polyamides, polyvinyls, polyacetates, polyesters, polytetrafluoroethylenes, silicone rubbers, and mixtures thereof.
4. The discs of claim 1 wherein said thermoplastic material is selected from the group consisting of polyethylenes, polyamides, polytetrafluoroethylenes, and mixtures thereof.
5. The disc of claim 1 wherein said metal wires are of a metal selected from the group consisting of iron, aluminum, copper, silver, and alloys thereof.
6. The disc of claim 1 wherein said metal wires are composed of copper or iron.
7. The disc of claim 1 wherein said metal wires are grid or mesh.
8. The disc of claim 1 wherein said carbon fibers are a woven fabric or felt.
9. The disc of claim 1 further comprising a plurality of layers.
10. The disc of claim 1 wherein said wires or fibers are parallel to each other.
US07/985,803 1991-12-05 1992-12-02 Rupture disc Expired - Fee Related US5279321A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4140089 1991-12-05
DE19914140089 DE4140089A1 (en) 1991-12-05 1991-12-05 Rupture disc

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Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5763027A (en) * 1994-06-30 1998-06-09 Thiokol Corporation Insensitive munitions composite pressure vessels
US5979477A (en) * 1998-02-04 1999-11-09 Trebor International, Inc. High purity, non-contaminating, burst disk
US6178759B1 (en) 1999-08-30 2001-01-30 Mark B. Key Rupture disk
US6378544B1 (en) 1999-04-22 2002-04-30 Cfmt, Inc. Pressure relief device and method of using the same
US20060127748A1 (en) * 2004-12-14 2006-06-15 General Dynamics C4 Systems, Inc. Battery adapter and method of making the same
US20080115742A1 (en) * 2006-11-21 2008-05-22 Rheem Manufacturing Company Temperature and Pressure Relief Apparatus for Water Heater
US20100175867A1 (en) * 2009-01-14 2010-07-15 Halliburton Energy Services, Inc. Well Tools Incorporating Valves Operable by Low Electrical Power Input
US20110174504A1 (en) * 2010-01-15 2011-07-21 Halliburton Energy Services, Inc. Well tools operable via thermal expansion resulting from reactive materials
US8354934B2 (en) 2010-06-14 2013-01-15 Fike Corporation Burst indicator
CN104006209A (en) * 2014-05-22 2014-08-27 国家电网公司 Safety valve action display device of indoor pressure container
US8973657B2 (en) 2010-12-07 2015-03-10 Halliburton Energy Services, Inc. Gas generator for pressurizing downhole samples
US9169705B2 (en) 2012-10-25 2015-10-27 Halliburton Energy Services, Inc. Pressure relief-assisted packer
US20160069474A1 (en) * 2014-09-08 2016-03-10 Fike Corporation Pressure relief device having conductive ink sensors formed thereon
US9284817B2 (en) 2013-03-14 2016-03-15 Halliburton Energy Services, Inc. Dual magnetic sensor actuation assembly
US9366134B2 (en) 2013-03-12 2016-06-14 Halliburton Energy Services, Inc. Wellbore servicing tools, systems and methods utilizing near-field communication
US9587486B2 (en) 2013-02-28 2017-03-07 Halliburton Energy Services, Inc. Method and apparatus for magnetic pulse signature actuation
US9752414B2 (en) 2013-05-31 2017-09-05 Halliburton Energy Services, Inc. Wellbore servicing tools, systems and methods utilizing downhole wireless switches
US10808523B2 (en) 2014-11-25 2020-10-20 Halliburton Energy Services, Inc. Wireless activation of wellbore tools
US10907471B2 (en) 2013-05-31 2021-02-02 Halliburton Energy Services, Inc. Wireless activation of wellbore tools

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2729450B1 (en) * 1995-01-18 1997-05-16 Castagner Bernard SOFT VALVE TEARABLE BY PYROTECHNIC INITIATION
GB0411288D0 (en) * 2004-05-20 2004-06-23 Interbrew Sa Alcohol beverage apparatus having a bursting disk
JP5193014B2 (en) * 2008-12-17 2013-05-08 株式会社朝日ラバー Overpressure release valve and overpressure release unit having the same
KR101066236B1 (en) * 2010-11-17 2011-09-20 에프디씨 주식회사 Rupture disc assembly

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB872063A (en) * 1959-02-10 1961-07-05 David Jacob Rasbash Improvements in duct systems for combustible mixtures
DE2121160A1 (en) * 1971-04-29 1972-12-14 Huber H Signal space membrane
GB1442286A (en) * 1973-11-28 1976-07-14 Euratom Frangible disc device
US4079854A (en) * 1976-08-09 1978-03-21 Continental Disc Corporation Rupture disc pressure relief device
DE3142345A1 (en) * 1981-10-26 1983-05-26 Dichtungstechnik W. Tripp & Co GmbH & Co, 8710 Kitzingen Pressure relief device
EP0033867B1 (en) * 1980-01-25 1986-04-02 Continental Disc Corporation Rupture disc alarm system
US4821909A (en) * 1988-03-10 1989-04-18 Fike Corporation Hygienic pressure relief panel unit
US5155471A (en) * 1991-06-21 1992-10-13 Bs&B Safety Systems, Inc. Low pressure burst disk sensor with weakened conductive strips

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB872063A (en) * 1959-02-10 1961-07-05 David Jacob Rasbash Improvements in duct systems for combustible mixtures
DE2121160A1 (en) * 1971-04-29 1972-12-14 Huber H Signal space membrane
GB1442286A (en) * 1973-11-28 1976-07-14 Euratom Frangible disc device
US4079854A (en) * 1976-08-09 1978-03-21 Continental Disc Corporation Rupture disc pressure relief device
EP0033867B1 (en) * 1980-01-25 1986-04-02 Continental Disc Corporation Rupture disc alarm system
DE3142345A1 (en) * 1981-10-26 1983-05-26 Dichtungstechnik W. Tripp & Co GmbH & Co, 8710 Kitzingen Pressure relief device
US4821909A (en) * 1988-03-10 1989-04-18 Fike Corporation Hygienic pressure relief panel unit
US5155471A (en) * 1991-06-21 1992-10-13 Bs&B Safety Systems, Inc. Low pressure burst disk sensor with weakened conductive strips

Cited By (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5763027A (en) * 1994-06-30 1998-06-09 Thiokol Corporation Insensitive munitions composite pressure vessels
US5979477A (en) * 1998-02-04 1999-11-09 Trebor International, Inc. High purity, non-contaminating, burst disk
US6378544B1 (en) 1999-04-22 2002-04-30 Cfmt, Inc. Pressure relief device and method of using the same
US6178759B1 (en) 1999-08-30 2001-01-30 Mark B. Key Rupture disk
US20060127748A1 (en) * 2004-12-14 2006-06-15 General Dynamics C4 Systems, Inc. Battery adapter and method of making the same
US7392766B2 (en) * 2006-11-21 2008-07-01 Rheem Manufacturing Company Temperature and pressure relief apparatus for water heater
US20080115742A1 (en) * 2006-11-21 2008-05-22 Rheem Manufacturing Company Temperature and Pressure Relief Apparatus for Water Heater
US20100175867A1 (en) * 2009-01-14 2010-07-15 Halliburton Energy Services, Inc. Well Tools Incorporating Valves Operable by Low Electrical Power Input
US8235103B2 (en) 2009-01-14 2012-08-07 Halliburton Energy Services, Inc. Well tools incorporating valves operable by low electrical power input
US9593546B2 (en) 2009-01-14 2017-03-14 Halliburton Energy Services, Inc. Well tools incorporating valves operable by low electrical power input
US20110174504A1 (en) * 2010-01-15 2011-07-21 Halliburton Energy Services, Inc. Well tools operable via thermal expansion resulting from reactive materials
US8839871B2 (en) 2010-01-15 2014-09-23 Halliburton Energy Services, Inc. Well tools operable via thermal expansion resulting from reactive materials
US8354934B2 (en) 2010-06-14 2013-01-15 Fike Corporation Burst indicator
US8973657B2 (en) 2010-12-07 2015-03-10 Halliburton Energy Services, Inc. Gas generator for pressurizing downhole samples
US9169705B2 (en) 2012-10-25 2015-10-27 Halliburton Energy Services, Inc. Pressure relief-assisted packer
US9988872B2 (en) 2012-10-25 2018-06-05 Halliburton Energy Services, Inc. Pressure relief-assisted packer
US10221653B2 (en) 2013-02-28 2019-03-05 Halliburton Energy Services, Inc. Method and apparatus for magnetic pulse signature actuation
US9587486B2 (en) 2013-02-28 2017-03-07 Halliburton Energy Services, Inc. Method and apparatus for magnetic pulse signature actuation
US9982530B2 (en) 2013-03-12 2018-05-29 Halliburton Energy Services, Inc. Wellbore servicing tools, systems and methods utilizing near-field communication
US9366134B2 (en) 2013-03-12 2016-06-14 Halliburton Energy Services, Inc. Wellbore servicing tools, systems and methods utilizing near-field communication
US9562429B2 (en) 2013-03-12 2017-02-07 Halliburton Energy Services, Inc. Wellbore servicing tools, systems and methods utilizing near-field communication
US9587487B2 (en) 2013-03-12 2017-03-07 Halliburton Energy Services, Inc. Wellbore servicing tools, systems and methods utilizing near-field communication
US9726009B2 (en) 2013-03-12 2017-08-08 Halliburton Energy Services, Inc. Wellbore servicing tools, systems and methods utilizing near-field communication
US9284817B2 (en) 2013-03-14 2016-03-15 Halliburton Energy Services, Inc. Dual magnetic sensor actuation assembly
US9752414B2 (en) 2013-05-31 2017-09-05 Halliburton Energy Services, Inc. Wellbore servicing tools, systems and methods utilizing downhole wireless switches
US10907471B2 (en) 2013-05-31 2021-02-02 Halliburton Energy Services, Inc. Wireless activation of wellbore tools
CN104006209A (en) * 2014-05-22 2014-08-27 国家电网公司 Safety valve action display device of indoor pressure container
CN104006209B (en) * 2014-05-22 2016-08-24 国家电网公司 Indoor pressure vessel relief valve action display device
US20160069474A1 (en) * 2014-09-08 2016-03-10 Fike Corporation Pressure relief device having conductive ink sensors formed thereon
US10808523B2 (en) 2014-11-25 2020-10-20 Halliburton Energy Services, Inc. Wireless activation of wellbore tools

Also Published As

Publication number Publication date
JPH0784906B2 (en) 1995-09-13
JPH05215263A (en) 1993-08-24
DE4140089A1 (en) 1993-06-09
EP0545279A1 (en) 1993-06-09

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